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Standard XII
Physics
Instantaneous Force and Impulse
Question

Mark correct option or options.
  1. The body of greater mass needs more forces to move due to more inertia
  2. Force versus time graph gives impulse
  3. Microscopic area of contact is about 10−4 times actual area of the contact
  4. All of the above

A
All of the above
B
The body of greater mass needs more forces to move due to more inertia
C
Force versus time graph gives impulse
D
Microscopic area of contact is about 10−4 times actual area of the contact
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Solution
Verified by Toppr

When the mass of the body is higher, then it needs more force to move because of inertia. Impulse is defined as force per unit time.
Microscopic area of contact is about 10−4 times actual area of the contact, It is known facts.
Therefore all the given statements are correct.
So the correct option is D

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